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[ subject:"Aerospace engineering." ]
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Advanced mission planning and impact...
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Vardaxis, George.
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Advanced mission planning and impact risk assessment of near-Earth asteroids in application to planetary defense.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Advanced mission planning and impact risk assessment of near-Earth asteroids in application to planetary defense./
作者:
Vardaxis, George.
面頁冊數:
199 p.
附註:
Source: Dissertation Abstracts International, Volume: 76-12(E), Section: B.
Contained By:
Dissertation Abstracts International76-12B(E).
標題:
Aerospace engineering. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3718590
ISBN:
9781321984750
Advanced mission planning and impact risk assessment of near-Earth asteroids in application to planetary defense.
Vardaxis, George.
Advanced mission planning and impact risk assessment of near-Earth asteroids in application to planetary defense.
- 199 p.
Source: Dissertation Abstracts International, Volume: 76-12(E), Section: B.
Thesis (Ph.D.)--Iowa State University, 2015.
In this work, an integrated utilization of analytic keyhole theory, B-plane mapping, and planetary encounter geometry, augmented by direct numerical simulation, is shown to be useful in determining the impact risk of an asteroid with the Earth on a given encounter, as well as the potential for future encounters. The accurate estimation of the impact probability of hazardous asteroids is extremely important for planetary defense mission planning. Asteroids in Earth resonant orbits are particularly troublesome because of the continuous threat they pose in the future. Based on the trajectories of the asteroid and the Earth, feasible mission trajectories can be found to mitigate the impact threat of hazardous asteroids. In order to try to ensure mission success, trajectories are judged based on initial and final parameters that would make the mission easier to complete. Expanding upon the established theory, a computational method is developed to estimate the impact probability of the hazardous asteroid, in order to assess the likelihood of an event, and then investigate the fragmentation of the asteroid due to a disruption mission and analyze its effects on the current and future encounters of the fragments with Earth.
ISBN: 9781321984750Subjects--Topical Terms:
1002622
Aerospace engineering.
Advanced mission planning and impact risk assessment of near-Earth asteroids in application to planetary defense.
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